NDLI: A novel low cost power converter topology for active power injection in low voltage monophasic power line from fuel cells

Content Provider	IEEE Xplore Digital Library
Author	Monteiro, J.R.B.A. Aguiar, M.L. Paula, G.T. Oliveira, A.A. Goncalvez Neto, L. Altafim, R.A.C.
Copyright Year	2014
Description	Author affiliation: Sch. of Eng. of Sao Carlos, Univ. of Sao Paulo, São Carlos, Brazil (Monteiro, J.R.B.A.; Aguiar, M.L.; Paula, G.T.; Oliveira, A.A.; Goncalvez Neto, L.; Altafim, R.A.C.)
Abstract	This paper presents a novel power converter topology for PEM solid state fuel cells. The proposed topology consists in an integrated DC/DC and DC/AC converters that can inject electrical power from a low voltage fuel cell into a low voltage monophasic line (100-220Vac). As this topology is suitable to step-up low voltages presents in fuel cell stacks output, it can be also applied in photovoltaic solar panels. The proposed topology is derived from the common topology composed by two intermediary converters: a DC/DC step-up converter and a DC/AC converter, or a monophasic inverter bridge. However, both stages of the converter must operate symbiotically so there is no need of DC bus capacitor, which would be a relatively high voltage capacitor, nor even an inductor for the fuel cell output, which is a relatively high current inductor. Thus, high voltage capacitors and high current inductors are avoided. Compared to others existing fuel cell power converter systems, the proposed circuit has a lower cost, since it has less component count, smaller size, due to the reducing of passive energy storage components and, although it uses the same amount of power transistors, eight in total, only four of them needs to be high frequency transistors, so the other four works in the frequency of the grid. Eventually, simulation and experimental results are presented.
Sponsorship	IEEE Power Electron. Soc.
Starting Page	3150
Ending Page	3154
File Size	906864
Page Count	5
File Format	PDF
ISBN	9781479923250
DOI	10.1109/APEC.2014.6803755
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-03-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Bridge circuits Fuel cells Transistors Capacitors Topology Logic gates
Content Type	Text
Resource Type	Article

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